empty_label do not work on ChainedForeignKey

mpena2099 commented 6 years ago

Checklist

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[x] This issue is not about installing previous versions of django-smart-selects older than 1.2.8. I understand that previous versions are insecure and will not receive any support whatsoever.
[x] I have verified that that issue exists against the master branch of django-smart-selects.
[x] I have searched for similar issues in both open and closed tickets and cannot find a duplicate.
[x] I have debugged the issue to the smart_selects app.
[x] I have reduced the issue to the simplest possible case.
[x] I have included all relevant sections of models.py, forms.py, and views.py with problems.
[x] I have used GitHub Flavored Markdown to style all of my posted code.

Steps to reproduce

models.py

class BuscaVeiculo(models.Model):
    marca = models.ForeignKey(Marca, blank = True, null=True)
    modelo = ChainedForeignKey(
        Modelo,
        chained_field="marca",
        chained_model_field="marca",
        show_all=False,
        auto_choose=True,
        verbose_name='Modelo',
        blank = True,
        null = True,
    )

forms.py

class FiltraVeiculoForm(forms.ModelForm):
    ano = forms.ChoiceField(choices=year_dropdown, widget=forms.Select(attrs={'class': 'form-control'}))

    class Meta:
        model = BuscaVeiculo
        fields = ('marca', 'modelo',)
        widgets = {
                    'marca': forms.Select(attrs={'class': 'form-control'}),
                    'ano': forms.Select(attrs={'class': 'form-control'}),
        }

    def __init__(self, *args, **kwargs):
        super(FiltraVeiculoForm, self).__init__(*args, **kwargs)
        self.fields['marca'].empty_label = "Filtrar por marca"      # <------ WORKS!
        self.fields['modelo'].empty_label = "Filtrar por modelo"  # <------ DO NOT WORK!

Actual behavior

Setting the empty_label do not work on ChainedForeignKey.

Thanks! Mauricio

blag commented 6 years ago

When you say it doesn't work, what do you mean? Is the empty label not what you expect? What label do you expect? What label shows up?

mpena2099 commented 6 years ago

@blag , thanks for your reply.

You can see what I mean in http://www.autofive.com.br/veiculos/ . I do not know how to change de label "--------" on the second select field in that page.

Thanks! Mauricio